Revisiting writing 1/3 in binary

A few years ago we did a project about writing 1/3 in binary: Writing 1/3 in Binary Earlier this week my older son was working on a probability problem about flipping coins and that problem reminded me of that old project. So, today we revisited that old project. We also got a really fun surprise … Continue reading Revisiting writing 1/3 in binary

Exploring 0.99999…. = 1 using fractions and binary

Last week my younger son read chapter 2 of Jordan Ellenberg’s How not to be Wrong. In that chapter Ellenberg discusses the the nunber 0.999999…. and whether or not it equals 1. We discussed his thoughts on that chapter here: https://mikesmathpage.wordpress.com/2021/01/09/talking-through-chapter-2-of-jordan-ellenbergs-how-not-to-be-wrong-with-my-younger-son/ Today I thought it would be fun to approach the idea from the (slightly) … Continue reading Exploring 0.99999…. = 1 using fractions and binary

A fun coincidence with our “1/3 in binary” project

Saw this tweet from Matt Henderson (via a Steven Strogatz retweet) today: It first reminded me of one of Patrick Honner’s blog posts from a few years ago: Honner’s post plus a lucky coincidence with a Numberphile video inspired a fun project with the boys: Numberphile’s Pebbling the Chessboard game and Mr. Honner’s square It … Continue reading A fun coincidence with our “1/3 in binary” project